Mobile Android Engineer

HarkSan Jose

On-site Full-time

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Experience Level

Mid to Senior

Qualifications

Requirements 5+ years of professional experience in Android development. Expert proficiency in Kotlin, Jetpack Compose, and the Android SDK. Strong understanding of Android architecture patterns such as MVVM, Clean Architecture, and dependency injection. Experience in building applications with real-time features, including streaming, WebSockets, or live audio/video. Track record of delivering high-quality mobile applications. Exceptional problem-solving skills and a passion for innovation.

About the job

About Hark

At Hark, we are revolutionizing the landscape of artificial intelligence by developing advanced, personalized intelligence systems that are proactive, multimodal, and capable of seamless interaction through speech, text, vision, and persistent memory.

We are merging this intelligence with cutting-edge hardware to forge a universal interface between humans and machines. While the current AI landscape is dominated by outdated chat boxes and devices, Hark is leading the charge towards the next generation of agentic systems that interact naturally with people and their surroundings.

To achieve this vision, we are crafting multimodal models and next-generation AI hardware, designed from the ground up as a cohesive interface for a new era of intelligent systems.

About the Role

As a Mobile Android Engineer at Hark, you will be pivotal in creating the Android application that delivers a real-time, multimodal AI experience directly to users' pockets.

Your mission is to develop an app that provides instant functionality, elegantly handles streaming AI responses, and integrates voice, text, and visual elements into a unified experience. The expectations are high, as this will be the primary means through which millions will engage with Hark.

This position offers significant ownership on a small team, allowing you to collaborate closely with designers, platform engineers, and model developers. Your contributions will define the user experience of Hark’s mobile presence.

Responsibilities

Design and implement a high-performance native Android application utilizing Kotlin and Jetpack Compose.
Integrate real-time speech, audio, and video streaming capabilities for rich multimodal AI interactions.
Develop efficient interfaces to backend AI services, optimizing for latency and responsiveness.
Take ownership of the complete mobile development lifecycle from conception to deployment, monitoring, and iteration.
Collaborate with design teams to create intuitive user interfaces that highlight advanced AI functionalities.
Promote best practices in Android development including testing, code quality, and accessibility.
Enhance performance across all levels of the application stack - from UI rendering to network calls, background processing, and power efficiency.

About Hark

Hark is at the forefront of artificial intelligence innovation, dedicated to constructing advanced, personalized intelligence systems that redefine human-machine interaction. We are developing technology that not only understands but anticipates user needs, making AI more accessible and effective in everyday applications.

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Mobile iOS Engineer at Hark | San Jose

Hark

Full-time|On-site|San Jose

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Electrical Engineer at Hark | San Jose

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Full-time|On-site|San Jose

About Hark Hark is at the forefront of artificial intelligence, creating advanced, personalized systems that proactively engage with users. Our innovative technology integrates speech, text, vision, and persistent memory to redefine human-machine interaction. We are pioneering the next generation of hardware that facilitates a seamless interface between humans and machines. Unlike traditional AI, which relies on outdated interfaces, Hark is committed to developing agentic systems that communicate naturally and intuitively with the real world. To achieve this vision, we are building multimodal models and next-gen AI hardware, meticulously designed as a cohesive interface for a new era of intelligent systems. About the Role We invite you to join our dynamic team as an Electrical Engineer, where you will take charge of the power architecture for our cutting-edge portable devices. Your expertise will ensure our products are safe, efficient, and durable. From selecting optimal battery chemistries to fine-tuning PMIC registers and developing intricate power models, you will ensure that every milliwatt is effectively utilized.

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Backend Engineer at Hark | San Jose

Hark

Full-time|On-site|San Jose

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Product Design Engineer at Hark | San Jose

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Full-Stack Engineer at Hark | San Jose

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About Hark Hark is at the forefront of artificial intelligence, dedicated to developing advanced, personalized intelligence systems. Our goal is to create a proactive, multimodal AI capable of interacting seamlessly with the world through speech, text, vision, and persistent memory. We are combining this intelligence with cutting-edge hardware to establish a universal interface between humans and machines. While current AI technology largely operates through outdated chat boxes, Hark is pioneering the future with agentic systems that communicate naturally with users and engage with the physical world. To realize this vision, we are innovating multimodal models and next-gen AI hardware, engineered from the ground up as a cohesive interface for a new generation of intelligent systems. About the Team As a Full-Stack Engineer at Hark, you will be instrumental in crafting the product surfaces that define user interactions across voice, text, and vision. Your role will focus on translating our AI capabilities into fast, intuitive, and trustworthy user experiences. Bridging the gap between advanced AI and user-friendly applications is crucial, and you will take ownership of this challenge. This position offers significant ownership within a small team, working directly alongside designers and model researchers. The features you develop will shape how users engage with Hark's technology. Responsibilities Design and develop engaging product surfaces, including interfaces and interactions that users rely on daily. Collaborate closely with designers to deliver experiences that are fast, reliable, and genuinely beneficial. Take full ownership of features from initial prototyping through to production deployment, continuously iterating based on user feedback. Create frontend solutions for agent workflows, ensuring tool integration, memory retrieval, and multi-step reasoning feel cohesive and trustworthy. Measure and evaluate the impact of your work, tracking quality and user feedback to foster improvement.

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Lead Brand Designer at Hark | San Jose

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Member of Technical Staff - Pretraining at Hark | San Jose

Hark

Full-time|On-site|San Jose

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Global Supply Chain Manager at Hark | San Jose

Hark

Full-time|On-site|San Jose

About Hark Hark is a pioneering artificial intelligence firm dedicated to developing advanced, personalized intelligence systems. Our technology is proactive, multimodal, and capable of seamless interaction through speech, text, vision, and persistent memory. We are merging this intelligence with cutting-edge hardware to establish a universal interface between humans and machines. While conventional AI primarily functions through chat boxes and outdated devices, Hark is at the forefront of what's next: agentic systems that communicate naturally with individuals and their environments. Our goal is to create multimodal models and state-of-the-art AI hardware, designed from the ground up as a cohesive interface for a new era of intelligent systems. About the Role We are seeking an outstanding Global Supply Chain Manager to help establish and scale the supply chain foundation critical to Hark's innovative products. This position is crucial for someone who can navigate both strategic and tactical levels; building supplier networks, leading sourcing strategies, and preparing for manufacturing readiness of intricate, high-performance hardware. You will collaborate closely with engineering, operations, contract manufacturers, and key suppliers to advance essential technologies and components from concept to mass production. Your responsibilities will include ensuring supply continuity, cost-effectiveness, quality assurance, flexibility, and execution across a wide array of custom and highly technical components. This role demands strong commercial acumen, technical proficiency, and agility in an environment where products, supply chains, and processes are developed concurrently. This is not a maintenance position; it is a growth-focused role. You will play a key part in defining how Hark industrializes new technologies, selects and develops suppliers, negotiates critical commercial terms, and formulates resilient supply strategies that align with ambitious product objectives. Comfort with ambiguity, the ability to make tough trade-offs, and the skills to foster alignment among internal teams and external partners are essential.

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Haptics Firmware Engineer at Hark | San Jose

Hark

Full-time|$120K/yr - $300K/yr|On-site|San Jose

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Apr 30, 2026

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Mobile Android Engineer

Hark

Full-time|On-site|San Jose

About Hark At Hark, we are revolutionizing the landscape of artificial intelligence by developing advanced, personalized intelligence systems that are proactive, multimodal, and capable of seamless interaction through speech, text, vision, and persistent memory. We are merging this intelligence with cutting-edge hardware to forge a universal interface between humans and machines. While the current AI landscape is dominated by outdated chat boxes and devices, Hark is leading the charge towards the next generation of agentic systems that interact naturally with people and their surroundings. To achieve this vision, we are crafting multimodal models and next-generation AI hardware, designed from the ground up as a cohesive interface for a new era of intelligent systems. About the Role As a Mobile Android Engineer at Hark, you will be pivotal in creating the Android application that delivers a real-time, multimodal AI experience directly to users' pockets. Your mission is to develop an app that provides instant functionality, elegantly handles streaming AI responses, and integrates voice, text, and visual elements into a unified experience. The expectations are high, as this will be the primary means through which millions will engage with Hark. This position offers significant ownership on a small team, allowing you to collaborate closely with designers, platform engineers, and model developers. Your contributions will define the user experience of Hark’s mobile presence. Responsibilities Design and implement a high-performance native Android application utilizing Kotlin and Jetpack Compose. Integrate real-time speech, audio, and video streaming capabilities for rich multimodal AI interactions. Develop efficient interfaces to backend AI services, optimizing for latency and responsiveness. Take ownership of the complete mobile development lifecycle from conception to deployment, monitoring, and iteration. Collaborate with design teams to create intuitive user interfaces that highlight advanced AI functionalities. Promote best practices in Android development including testing, code quality, and accessibility. Enhance performance across all levels of the application stack - from UI rendering to network calls, background processing, and power efficiency.

Apr 30, 2026

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Integration Engineer

Hark

Full-time|On-site|San Jose

About Hark Hark is at the forefront of artificial intelligence, developing innovative, personalized intelligence systems that are proactive, multimodal, and capable of engaging with the world via speech, text, vision, and persistent memory. We are merging this intelligence with cutting-edge hardware to forge a universal interface that connects humans and machines. Unlike conventional AI that operates through outdated chat boxes and devices, Hark is pioneering the future with agentic systems that engage naturally with individuals and their environments. Our mission is to create multimodal models and next-generation AI hardware, meticulously designed as an integrated interface for a new era of intelligent systems. About the Role As an Integration Engineer, you will take ownership of the integrations layer that empowers Hark's AI agent to be genuinely effective in real-world applications. Your responsibility will be to connect our AI to the tools, services, and data sources that users rely on daily. Your work will involve designing and implementing the protocols, connectors, and execution primitives that enable Hark to perform real actions, such as managing emails, calendars, and third-party API interactions. The true potential of our agentic system hinges on its ability to connect and act. This role offers significant ownership within a compact team where you will collaborate directly with platform engineers and model researchers. The integrations you develop will set the parameters for Hark's capabilities. Responsibilities Design and construct the integration layer connecting Hark's agent to third-party services, including email, calendars, productivity tools, communication platforms, and developer tools. Oversee the complete lifecycle of integrations: from authentication flows to API clients, schema normalization, action execution, and robust error handling. Ensure reliability beyond just the happy path. Establish and implement tool and action protocols that allow the agent to engage with external systems in a secure and consistent manner. Facilitate the seamless addition of new integrations. Collaborate closely with platform engineers to ensure that connectors are integrated smoothly into the agent runtime, ensuring fast, observable, and appropriately sandboxed tool execution. Work in partnership with model researchers to define tool schemas and action semantics that models can reliably interpret, as the quality of the interface directly influences model behavior. Instrument integrations for reliability and accuracy, tracking failures, surfacing regressions, and ensuring rapid feedback loops with the team. Identify high-leverage integration opportunities to maximize impact.

Apr 30, 2026

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Hardware Test Engineer

Hark

Full-time|On-site|San Jose

About Hark Hark is at the forefront of artificial intelligence innovation, crafting sophisticated, personalized intelligence systems that are proactive, multimodal, and capable of engaging with the world through speech, text, vision, and persistent memory. We are merging this intelligence with cutting-edge hardware to establish a universal interface that bridges the gap between humans and machines. While traditional AI mainly relies on outdated devices and chat interfaces, Hark is pioneering the future with agentic systems that naturally interact with people and their environments. Our mission involves developing multimodal models and next-generation AI hardware concurrently, designed from the ground up as a cohesive interface for a revolutionary era of intelligent systems. About the Role We are seeking a Hardware Test Engineer who will be instrumental in creating the test infrastructure that guarantees our AI-powered devices adhere to quality, reliability, and performance benchmarks throughout the development process. You will manage the test strategy from initial board bring-up to mass production, encompassing fixture design, automation scripting, and establishing the criteria for product readiness. Your role will involve executing functional tests on the bench and conducting burn-in and stress tests at the factory, serving as the final quality assurance before our devices reach the end-users. Responsibilities Test Strategy: Define and take ownership of the comprehensive test plan across EVT, DVT, PVT, and production phases. Fixture Design: Create and develop custom test fixtures (bed-of-nails, pogo pin, cable harness) for both PCBA and system-level assessments. Test Automation: Write automated test scripts in Python to control instruments, gather data, and produce pass/fail reports. Board Bring-Up: Lead the electrical bring-up of new PCBAs, diagnosing issues with power rails, clocks, interfaces, and peripheral functionalities. Reliability Testing: Design and conduct environmental stress tests, including thermal cycling, vibration, drop tests, and accelerated life testing. Production Support: Collaborate with contract manufacturers to set up and maintain test stations on the factory floor, ensuring yield and throughput objectives are met. Failure Analysis: Conduct root cause analysis on field returns and test failures using advanced tools such as oscilloscopes, logic analyzers, and X-ray inspection. Requirements Education: A Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, or a related field. Test Automation: Proficiency in Python for instrument control (SCPI/VISA), data analysis, and test reporting. Lab Instrumentation: Advanced skills in using oscilloscopes, logic analyzers, and other lab equipment.

Apr 30, 2026

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Lead Data Engineer

Hark

Full-time|On-site|San Jose

About HarkHark is at the forefront of artificial intelligence, dedicated to crafting sophisticated, personalized intelligence systems. Our innovative approach merges proactive, multimodal capabilities, enabling interaction through speech, text, vision, and enduring memory.We are revolutionizing the interface between humans and machines by integrating our intelligence with cutting-edge hardware. While traditional AI applications are limited to chat boxes and outdated devices, Hark is pioneering the next generation of agentic systems that communicate seamlessly with people and their environments.Our mission involves the development of multimodal models and next-generation AI hardware, all designed from the ground up as a cohesive interface for a new era of intelligent systems.About the RoleAs the Lead Data Engineer, you will establish the data infrastructure that transforms raw signals into the training datasets essential for Hark's models. You will be responsible for building and maintaining the pipelines that ensure a smooth flow of data at scale.This role encompasses the entire data engineering stack: from ingestion and transformation to quality filtering and delivery to training and evaluation systems. The efficacy of the models we deploy is directly linked to the quality of the underlying data, and this position is pivotal in owning that foundational aspect.This high-responsibility role requires collaboration with a small, agile team. You will work closely with model researchers, data collection leads, and infrastructure engineers, where the systems you design will significantly influence the quality and speed of model development.

Apr 30, 2026

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Application Engineer at WeRide | San Jose, CA

WeRide

Full-time|On-site|San Jose, CA

Founded in 2017, WeRide (NASDAQ: WRD) is at the forefront of autonomous driving innovation, pioneering technologies from Level 2 to Level 4. As the only technology firm globally with driverless permits across China, the UAE, Singapore, and the United States, WeRide is actively engaged in autonomous driving research, testing, and operational deployment in over 30 cities across 10 countries. Our self-driving fleet has been operational for more than 2,200 days, showcasing our commitment to advancing mobility solutions.In this role, you will play a crucial part in enhancing our autonomous vehicle systems by troubleshooting software, hardware, and system-related challenges. You will also manage system releases and develop innovative tools to streamline incident resolution processes, ensuring the efficiency and safety of our operations.

Jan 17, 2019

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Embedded Software Engineer at Roku | San Jose, California

Roku, Inc.

Full-time|$197.9K/yr - $280K/yr|On-site|San Jose, California

Teamwork Makes the Stream Work. Join Roku in Revolutionizing TV StreamingAs the leading TV streaming platform in the U.S., Canada, and Mexico, Roku is on a mission to power every television in the world. We have pioneered streaming to the TV, connecting consumers with the content they cherish, enabling content publishers to reach large audiences, and offering advertisers unique ways to engage users.Your journey with Roku begins with making a valuable contribution from day one. We’re a fast-growing public company where every employee plays a key role. Here, you will have the chance to delight millions of TV streamers globally while gaining invaluable experience across diverse disciplines. About the RoleAt Roku, we continue to lead and innovate in the streaming industry. Our ongoing success relies on talented embedded software engineers like you who will join the Roku OS Streaming Media team.In this position, you will contribute to the Roku Media engine, implementing cutting-edge features and designing algorithms that ensure seamless video playback for our users. Your responsibilities will include optimizing network interactions between our players and CDN, implementing adaptive streaming stacks, integrating DRM systems, and developing performance monitoring tools.The features and enhancements you create will have a direct impact on millions of users daily. This role is perfect for an experienced professional with innovative solutions to complex challenges, capable of translating ideas into ultra-reliable software.For California Only - The estimated annual salary for this position ranges from $197,900 to $280,000. Compensation packages reflect each candidate's unique skills, certifications, and geographical location. This position offers health insurance, equity awards, life insurance, disability benefits, parental leave, wellness benefits, and paid time off.

Mar 17, 2026

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Principal Embedded Operating System Architect

Hark

Full-time|On-site|San Jose

About Hark Hark is at the forefront of artificial intelligence, dedicated to developing sophisticated, personalized intelligence systems that are proactive, multimodal, and able to engage with the world through speech, text, vision, and persistent memory. Our mission is to combine this intelligence with cutting-edge hardware, creating a seamless interface between humans and machines. While current AI technologies often rely on chat boxes and outdated devices, Hark is paving the way for the future with agentic systems that interact intuitively with people and their surroundings. To achieve this vision, we are designing multimodal models and next-gen AI hardware as a cohesive, unified interface for a new era of intelligent systems. About the Role We are seeking a Principal Embedded OS Architect to lead our operating system strategy and software architecture for our consumer electronics product line, overseeing the journey from initial architecture to mass production. You will serve as the technical leader, responsible for defining the structure of our embedded software stacks, ensuring their scalability across our product range, and optimizing performance. This role encompasses hands-on systems engineering as well as strategic technical leadership and team development — you will influence architectural decisions while remaining connected to the code and hardware. Collaborate closely with hardware, firmware, applications, and program management teams to ensure alignment from new product introduction to ongoing production.

Apr 30, 2026

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